Question

Simplify 3m^-2 over 5n^-3

Answer 1

3m^-2           3n^3
---------    =  -----------
5n^-3            5m^2

hope it helps

Answer 2

Reember
$\frac{x^m}{x^n}=x^{m-n}$
$x^{-m}=\frac{1}{x^m}$


$\frac{3m^{-2}}{5n^{-3}}=$
$frac{\frac{3}{m^2}}{\frac{5}{n^3}}=$
$\frac{3n^3}{5m^2}$